Each World can have an unlimited number of Floors, each being created as you initially enter it. Floors within each World are connected by two Portals, one leading "up" (or back from where you came), and "down" (to the next level). The appearance of Portals varies by World.
The top Floor of each World is Floor 0, and this Floor contains the Gates to other Worlds and a "down" Portal. Once off Floor 0, there is only an "up" Portal. Runes (see Items) must be gathered (a random amount per Floor) to enable access to the "down" Portal.
Generally, the further down in floors you are, the tougher the monsters are to kill...
Floors also have Rooms scattered about, leading to a variety of different areas.
Floors are primarily composed of:
empty: where you can walk
walls: where you cannot deep liquid: usually water or lava, where you can walk atop only when using the appropriate magick
shallow liquid: Areas you can walk, but at half speed; usually water or acid (where you also suffer environmental damage without the proper magick)
sign posts: You cannot walk over these, but you can jump over them. They only appear on the top Floor (0) and in Campaigns. When found in a regular World, they just give directions as to what adjoining World is which way; in Campaigns, they can say anything and be placed anywhere the designer wants.
sliders: walls you can push forward to create a new path...found only in Campaigns.
traps: 6 different ones!
Fire: You're blasted with flames from a nearby lava vent.
Pit: You fall to next floor, usually sustaining some damage when you hit bottom.
Spike: You're impaled!
Gas: You're temporarily confused.
Teleport: Encountered in regular Worlds, you are randomly transported to another place on the same floor...in Campaigns, they can be random or directed to a particular point.
